drivers/net/ethernet/ibm/ehea/ehea_ethtool.c

   1 /*
   2  *  linux/drivers/net/ethernet/ibm/ehea/ehea_ethtool.c
   3  *
   4  *  eHEA ethernet device driver for IBM eServer System p
   5  *
   6  *  (C) Copyright IBM Corp. 2006
   7  *
   8  *  Authors:
   9  *       Christoph Raisch <raisch@de.ibm.com>
  10  *       Jan-Bernd Themann <themann@de.ibm.com>
  11  *       Thomas Klein <tklein@de.ibm.com>
  12  *
  13  *
  14  * This program is free software; you can redistribute it and/or modify
  15  * it under the terms of the GNU General Public License as published by
  16  * the Free Software Foundation; either version 2, or (at your option)
  17  * any later version.
  18  *
  19  * This program is distributed in the hope that it will be useful,
  20  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22  * GNU General Public License for more details.
  23  *
  24  * You should have received a copy of the GNU General Public License
  25  * along with this program; if not, write to the Free Software
  26  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  27  */
  28
  29 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  30
  31 #include "ehea.h"
  32 #include "ehea_phyp.h"
  33
  34 static int ehea_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
  35 {
  36         struct ehea_port *port = netdev_priv(dev);
  37         u32 speed;
  38         int ret;
  39
  40         ret = ehea_sense_port_attr(port);
  41
  42         if (ret)
  43                 return ret;
  44
  45         if (netif_carrier_ok(dev)) {
  46                 switch (port->port_speed) {
  47                 case EHEA_SPEED_10M:
  48                         speed = SPEED_10;
  49                         break;
  50                 case EHEA_SPEED_100M:
  51                         speed = SPEED_100;
  52                         break;
  53                 case EHEA_SPEED_1G:
  54                         speed = SPEED_1000;
  55                         break;
  56                 case EHEA_SPEED_10G:
  57                         speed = SPEED_10000;
  58                         break;
  59                 default:
  60                         speed = -1;
  61                         break; /* BUG */
  62                 }
  63                 cmd->duplex = port->full_duplex == 1 ?
  64                                                      DUPLEX_FULL : DUPLEX_HALF;
  65         } else {
  66                 speed = ~0;
  67                 cmd->duplex = -1;
  68         }
  69         ethtool_cmd_speed_set(cmd, speed);
  70
  71         if (cmd->speed == SPEED_10000) {
  72                 cmd->supported = (SUPPORTED_10000baseT_Full | SUPPORTED_FIBRE);
  73                 cmd->advertising = (ADVERTISED_10000baseT_Full | ADVERTISED_FIBRE);
  74                 cmd->port = PORT_FIBRE;
  75         } else {
  76                 cmd->supported = (SUPPORTED_1000baseT_Full | SUPPORTED_100baseT_Full
  77                                | SUPPORTED_100baseT_Half | SUPPORTED_10baseT_Full
  78                                | SUPPORTED_10baseT_Half | SUPPORTED_Autoneg
  79                                | SUPPORTED_TP);
  80                 cmd->advertising = (ADVERTISED_1000baseT_Full | ADVERTISED_Autoneg
  81                                  | ADVERTISED_TP);
  82                 cmd->port = PORT_TP;
  83         }
  84
  85         cmd->autoneg = port->autoneg == 1 ? AUTONEG_ENABLE : AUTONEG_DISABLE;
  86
  87         return 0;
  88 }
  89
  90 static int ehea_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
  91 {
  92         struct ehea_port *port = netdev_priv(dev);
  93         int ret = 0;
  94         u32 sp;
  95
  96         if (cmd->autoneg == AUTONEG_ENABLE) {
  97                 sp = EHEA_SPEED_AUTONEG;
  98                 goto doit;
  99         }
 100
 101         switch (cmd->speed) {
 102         case SPEED_10:
 103                 if (cmd->duplex == DUPLEX_FULL)
 104                         sp = H_SPEED_10M_F;
 105                 else
 106                         sp = H_SPEED_10M_H;
 107                 break;
 108
 109         case SPEED_100:
 110                 if (cmd->duplex == DUPLEX_FULL)
 111                         sp = H_SPEED_100M_F;
 112                 else
 113                         sp = H_SPEED_100M_H;
 114                 break;
 115
 116         case SPEED_1000:
 117                 if (cmd->duplex == DUPLEX_FULL)
 118                         sp = H_SPEED_1G_F;
 119                 else
 120                         ret = -EINVAL;
 121                 break;
 122
 123         case SPEED_10000:
 124                 if (cmd->duplex == DUPLEX_FULL)
 125                         sp = H_SPEED_10G_F;
 126                 else
 127                         ret = -EINVAL;
 128                 break;
 129
 130         default:
 131                         ret = -EINVAL;
 132                 break;
 133         }
 134
 135         if (ret)
 136                 goto out;
 137 doit:
 138         ret = ehea_set_portspeed(port, sp);
 139
 140         if (!ret)
 141                 netdev_info(dev,
 142                             "Port speed successfully set: %dMbps %s Duplex\n",
 143                             port->port_speed,
 144                             port->full_duplex == 1 ? "Full" : "Half");
 145 out:
 146         return ret;
 147 }
 148
 149 static int ehea_nway_reset(struct net_device *dev)
 150 {
 151         struct ehea_port *port = netdev_priv(dev);
 152         int ret;
 153
 154         ret = ehea_set_portspeed(port, EHEA_SPEED_AUTONEG);
 155
 156         if (!ret)
 157                 netdev_info(port->netdev,
 158                             "Port speed successfully set: %dMbps %s Duplex\n",
 159                             port->port_speed,
 160                             port->full_duplex == 1 ? "Full" : "Half");
 161         return ret;
 162 }
 163
 164 static void ehea_get_drvinfo(struct net_device *dev,
 165                                struct ethtool_drvinfo *info)
 166 {
 167         strlcpy(info->driver, DRV_NAME, sizeof(info->driver));
 168         strlcpy(info->version, DRV_VERSION, sizeof(info->version));
 169 }
 170
 171 static u32 ehea_get_msglevel(struct net_device *dev)
 172 {
 173         struct ehea_port *port = netdev_priv(dev);
 174         return port->msg_enable;
 175 }
 176
 177 static void ehea_set_msglevel(struct net_device *dev, u32 value)
 178 {
 179         struct ehea_port *port = netdev_priv(dev);
 180         port->msg_enable = value;
 181 }
 182
 183 static const char ehea_ethtool_stats_keys[][ETH_GSTRING_LEN] = {
 184         {"sig_comp_iv"},
 185         {"swqe_refill_th"},
 186         {"port resets"},
 187         {"Receive errors"},
 188         {"TCP cksum errors"},
 189         {"IP cksum errors"},
 190         {"Frame cksum errors"},
 191         {"num SQ stopped"},
 192         {"PR0 free_swqes"},
 193         {"PR1 free_swqes"},
 194         {"PR2 free_swqes"},
 195         {"PR3 free_swqes"},
 196         {"PR4 free_swqes"},
 197         {"PR5 free_swqes"},
 198         {"PR6 free_swqes"},
 199         {"PR7 free_swqes"},
 200         {"PR8 free_swqes"},
 201         {"PR9 free_swqes"},
 202         {"PR10 free_swqes"},
 203         {"PR11 free_swqes"},
 204         {"PR12 free_swqes"},
 205         {"PR13 free_swqes"},
 206         {"PR14 free_swqes"},
 207         {"PR15 free_swqes"},
 208 };
 209
 210 static void ehea_get_strings(struct net_device *dev, u32 stringset, u8 *data)
 211 {
 212         if (stringset == ETH_SS_STATS) {
 213                 memcpy(data, &ehea_ethtool_stats_keys,
 214                        sizeof(ehea_ethtool_stats_keys));
 215         }
 216 }
 217
 218 static int ehea_get_sset_count(struct net_device *dev, int sset)
 219 {
 220         switch (sset) {
 221         case ETH_SS_STATS:
 222                 return ARRAY_SIZE(ehea_ethtool_stats_keys);
 223         default:
 224                 return -EOPNOTSUPP;
 225         }
 226 }
 227
 228 static void ehea_get_ethtool_stats(struct net_device *dev,
 229                                      struct ethtool_stats *stats, u64 *data)
 230 {
 231         int i, k, tmp;
 232         struct ehea_port *port = netdev_priv(dev);
 233
 234         for (i = 0; i < ehea_get_sset_count(dev, ETH_SS_STATS); i++)
 235                 data[i] = 0;
 236         i = 0;
 237
 238         data[i++] = port->sig_comp_iv;
 239         data[i++] = port->port_res[0].swqe_refill_th;
 240         data[i++] = port->resets;
 241
 242         for (k = 0, tmp = 0; k < EHEA_MAX_PORT_RES; k++)
 243                 tmp += port->port_res[k].p_stats.poll_receive_errors;
 244         data[i++] = tmp;
 245
 246         for (k = 0, tmp = 0; k < EHEA_MAX_PORT_RES; k++)
 247                 tmp += port->port_res[k].p_stats.err_tcp_cksum;
 248         data[i++] = tmp;
 249
 250         for (k = 0, tmp = 0; k < EHEA_MAX_PORT_RES; k++)
 251                 tmp += port->port_res[k].p_stats.err_ip_cksum;
 252         data[i++] = tmp;
 253
 254         for (k = 0, tmp = 0; k < EHEA_MAX_PORT_RES; k++)
 255                 tmp += port->port_res[k].p_stats.err_frame_crc;
 256         data[i++] = tmp;
 257
 258         for (k = 0, tmp = 0; k < EHEA_MAX_PORT_RES; k++)
 259                 tmp += port->port_res[k].p_stats.queue_stopped;
 260         data[i++] = tmp;
 261
 262         for (k = 0; k < 16; k++)
 263                 data[i++] = atomic_read(&port->port_res[k].swqe_avail);
 264 }
 265
 266 static const struct ethtool_ops ehea_ethtool_ops = {
 267         .get_settings = ehea_get_settings,
 268         .get_drvinfo = ehea_get_drvinfo,
 269         .get_msglevel = ehea_get_msglevel,
 270         .set_msglevel = ehea_set_msglevel,
 271         .get_link = ethtool_op_get_link,
 272         .get_strings = ehea_get_strings,
 273         .get_sset_count = ehea_get_sset_count,
 274         .get_ethtool_stats = ehea_get_ethtool_stats,
 275         .set_settings = ehea_set_settings,
 276         .nway_reset = ehea_nway_reset,          /* Restart autonegotiation */
 277 };
 278
 279 void ehea_set_ethtool_ops(struct net_device *netdev)
 280 {
 281         SET_ETHTOOL_OPS(netdev, &ehea_ethtool_ops);
 282 }